1 files changed, 4 insertions, 2 deletions
diff --git a/include/hw/dma/i8257.h b/include/hw/dma/i8257.h
index ee06371699..46eef1f581 100644
--- a/include/hw/dma/i8257.h
+++ b/include/hw/dma/i8257.h
@@ -3,8 +3,10 @@
 
 #include "hw/isa/isa.h"
 #include "exec/ioport.h"
+#include "qom/object.h"
 
 #define TYPE_I8257 "i8257"
+typedef struct I8257State I8257State;
 #define I8257(obj) \
     OBJECT_CHECK(I8257State, (obj), TYPE_I8257)
 
@@ -20,7 +22,7 @@ typedef struct I8257Regs {
     void *opaque;
 } I8257Regs;
 
-typedef struct I8257State {
+struct I8257State {
     /* <private> */
     ISADevice parent_obj;
 
@@ -43,7 +45,7 @@ typedef struct I8257State {
     int running;
     PortioList portio_page;
     PortioList portio_pageh;
-} I8257State;
+};
 
 void i8257_dma_init(ISABus *bus, bool high_page_enable);